<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div {
            width: 100px;
            height: 100px;
            border: solid;
            cursor: pointer;
        }
        label {
            cursor: pointer;
        }
    </style>
</head>
<body>
    <a href="">css</a>
    <div>hello</div>
    <input type="text">
    <hr>

    <input type="radio" name="area" checked id="one">
    <label for="one">单程</label>
    <input type="radio" name="area" id="two">
    <label for="two">往返</label>
</body>
</html>